Fire in Salt
A small piece of sodium metal is dropped into a flask containing chlorine gas. They react explosively. Electrons jump from sodium atoms to chlorine atoms, emitting heat and light that was hidden within the elements.
![](https://i0.wp.com/earthlymaterials.com/wp-content/uploads/2018/06/NileRed.jpg?fit=300%2C168&ssl=1)
Image source: NileRed on YouTube, Making Table Salt…Used with permission